Finding the Fourth Proportional to 71,305.80, 106,958.70 and 36,313.80
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Solution
The fourth proportional to 71,305.80, 106,958.70 and 36,313.80 is: 54,470.70
Step by Step Solution
- Step 1: Write the proportion equation
71,305.80 : 106,958.70 = 36,313.80 : x - Step 2: Convert to fraction form
71,305.80/106,958.70 = 36,313.80/x - Step 3: Cross multiply
71,305.80x = 106,958.70 × 36,313.80 - Step 4: Simplify right side
71,305.80x = 3,884,076,840.06 - Step 5: Solve for x
x = 3,884,076,840.06/71,305.80 - Step 6: Final answer
x = 54,470.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.